#include "main/utils.h"
using namespace std;

class Solution {
public:
    vector<int> getConcatenation(vector<int>& nums) {
        nums.insert(nums.end(), nums.begin(), nums.end());
        return nums;
    }
};

int main() {
  vector<int> nums = {1, 1, 2, 1};
  Solution su;
  su.getConcatenation(nums);
  printVec("leetcode1929", nums);

  return 0;
}
